Q3.An equilateral triangle has a perimeter of 18 cm and a height of 5 cm.Find
i.its base,
ii.its area.
Answers
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Answer:
Let the sides of equilateral triangle be x,x and x
Step-by-step explanation:
First point
=x+x+x= 18
=3x=18
=x=18/3
=x=6
Second point
area of equlateral traingle is
=1/2×base×height
=1/2×6×5
=1×3×5
=15 cm2
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